Hose coupling connection



April 21, 1936.-

w. G. COLLINS HOSE COUPLING CONNECTION Filed May 20, 1955 mfimm Gflollins Patented Apr. 21, 1936 UNITED STATES PATENT OFFICE 4 Claims.

This invention relates to a hose coupling connection designed primarily for use on air supply hose employed at gasoline filling stations, but it is to be understood that the invention may be used'in any instance or capacity for which it may be found applicable, as for example, for 1 use in connection with nitrogen and oxygen containers.

The invention has for its object to provide, in a manner as hereinafter set forth, a hose coupling connection providing for a quick change connection when desired.

A further object of the invention is to provide, in a manner as hereinafter set forth, a hose coupling connection that will afford an easier and quicker method for filling station attendants to remove an air hose in the event that it is desired to take the hose in at night.

A further object of the invention is to provide, in a manner as hereinafter set forth, a hose coupling connection for enabling a quick-change connection for nitrogen and oxygen containers. A further object'of the invention is to provide, in a manner as hereinafter set forth, a hose coupling connection including a pair of interengaging elements soconstructed that when interengaged'an air-.passage-way is opened allowing full force of air line to make connection with a detachable line, and when disengaged one of said elements willcheck the supply of air from its source.

Further objects of theinvention are to provide, in a manner as hereinafter set forth, a hose coupling connection which is simple in its construction and arrangement, strong, durable, compact, conveniently disposed for conducting purposes, thoroughly efficient in its use, and inexpensive to manufacture.

With the foregoing and other objectswhich may hereinafter appear, the invention consists of such parts and such combination of parts as will be specifically described and illustrated in the accompanying drawing, wherein is shown embodiments of the invention, but it is to be understood that changes, variations and modifications maybe resorted to which fall within the scope of the invention as claimed.

[In the drawing:

- Figure 1 is a vertical sectional view of the connection as applied to a hose, Figure 2 is a section on line 2--2, Figure 1, Figure 3 is a section on line 33, Figure 1, Figure 4 is a perspective view of the plunger,

and

Figure 5 is a fragmentary view in vertical sectiono'f a modified form.

Referring to Figures 1 to 4 of the drawing, the connection includes a plunger carrying air feeding female element 6 and an air supply male element 1 for interengagement with the element 6. The latter respectively includes a casting 8 formed with a forward horizontally disposed squared socket 9 opening at the front side thereof; a threaded opening I0 extending from the outer end thereof to the socket 9 in proximity to the base of the latter; an internal cavity II intermediate the endsthereof and which opens into socket 9 in proximity to the base of the latter; an air feed port [2 disposed axially thereof and opening at its discharge end into cavity ll centrally of the base of the latter; and a rear annular socket 13 open at the rear end thereof andcommunicating through its base with the intake end of the port l2. The sockets 9 and I3 are disposed at right angles to each other. The wall of socket I3 is threaded. The element 6 also includes an internally threaded flange collar l4 having peripheral threads l5 for engagement with thexwall of opening l0 and with its flange l6 seated upon the outer end I! of casting 8; a rubber washer or annulus I8, of the bib type, seated upon the base of and of less height than the depth of cavity II and having its inner edge flush with the wall of port I2; a flat rubber washer or annulus l9 seated against the base of socket I3 and having its inner edge flush with the wall of port l2; a cup-shaped annular peripherally threaded container 20 of less length than 'and'threadedly engaging with the wall of .socket l3, having its edge at its open end clamping against the marginal portion of the rear face of washer I9 and its bottom formed with an air intake opening 2|; a check which is shown, by way of example, as consisting of a plunger 22 constituting an air feed cut-off arranged in container 20 and extended through washer I9, port 12 and into washer l8; and a clamping screw 22 threadedly engaging with the internal threads .of collar l4 having fixed to its outer end a hand wheel-2 3 and with its inner-end 24 pointed.

The plunger22 is formed of a flat reduced outer portion 25, an intermediate portion 26 of polygonal cross section and an inner portion 21 of segmental contour in cross section. The width of portion 25 corresponds to the diameter of portion 26. The diameter of the portion 21 is materially greater than that of portion 21. The portion 21 constitutes the head of the plunger and functions as a cut-off. The washers l8 and l9 coact with the port |2 to form an air feed channel leading from the open end of container 2|] to and opening into socket E3. The head of plunger 22 is arranged in container 29 and coacts with washer l9 for closing the intake end of the feed channel. The portion 26 of plunger 22 is of less diameter than the said air feed channel. The portion 21 of plunger 22 is of greater diameter than that of the said air feed channel. When the connection is active, due to the interengagement of elements 6, I, the portions 25 of plunger 22 is arranged in washer l9 and port I2, the portion 26 of plunger 22 is arranged in port l2 and extends through washer i9 into container 29 and the port 2'! of plunger 22 is positioned in container 29 in spaced relation with respect to washer I9. When section I is removed from section 6 the portion 25 of plunger 22 extends into socket 9 and the head 21 is maintained against washer l9 by the feed of air whereby the intake end of the air feed channel is closed.

The element '1 consists of a casting 28 of blocklike form of rectangular contour, an angleshaped air supply channel 29 formed of a short branch 30 disposed transversely and a long branch 3| disposed horizontally of the casting 28. The inner ends of the said branches merge into each other. The outer end of branch 30 opens at one side face of the casting. The diameter of branch 39 is materially less than the inner diameter of washer H3. The outer end of branch 3| opens at the outer end of the casting 28. That side of the latter at Which the outer end of branch 39 opens is formed with a protuberance 33 of less width and breadth than that of cavity I I and is adapted to bind against washer 8 when the elements are clamped together to prevent leakage. The branch 33 extends through protuberance 33 axially of the latter. The protuberance 33 is disposed between the transverse median and inner end of the casting. The branch 3| is formed of a part 34 of uniform diameter and a part 35 of gradually increasing diameter. The part 35 forms the outer portion of branch 3| The junction of the parts 34, 35 form branch 3| with a shoulder 36. The part 35 gradually increases in diameter frompart 33 to the outer end of channel 29 and is threaded. Threadedly engaging with the part 35 of largest diameter of the branch 3| and abutting shoulder 36 is the tapered peripherally threaded inner portion 31 of a tubular coupling member 38 to which is attached a filling hose 39. That side of casting 28 opposite that side thereof formed with the protuberance 33 is provided with a flared socket 40 for the reception of the pointed inner end of screw 22.

The element 6 is adapted to be connected at that end thereof provided with the socket I3 by any suitable means, not shown, which leads from an air supply source, not shown. When elements 6, I are arranged in connected position with respect to the air source and the hose 39, the element 1 is extended into socket 9, the protuberance 33 is positioned in cavity the leg 34 communicates with the outlet end of the air feed channel provided by port l2 and washers I8, I9, the plunger is depressed by protuberance 33 which unseats the portion or head 21, and the screw 22 is adjusted in a direction to have its inner end bind against the wall of socket 40 whereby section is detachably clamped to section 6; When portion or head 27 of plunger 22 is unseated, communication is had between the air source and hose 39. By shifting screw 22 from socket 49 element 1 may be quickly removed from section 6.

The form shown in Figure 5 is the same as that described aforesaid, with the exception that in lieu of the plunger 3| being formed with a circular inner portion of segmental cross section it has its inner portion 42 of globular contour; otherwise than that as stated the modification will be similar in construction to that of the other form.

The castings 8 and 28 are formed of metallic material that is not apt to be impaired or scarred in any manner due to rough handling when the elements 6, I are employed to make changes or to damage any of the parts carried by casting 8 or to impair element 1 when it strikes or is dragged over a pavement or floor. I

What I claim is:

.1. In a separable coupling for air feed and supply lines a female member for connection to the air feed line and a male member for connection to the air supply line, said female member including a casting formed with spaced forward and rear socketsv disposed at right anglesto. each other, said forward socket opening at the front of the casting for receiving the male member and said rear socket opening at one end of the casting for receiving the supply line, said castingbeing formed axially and intermediate its ends with an airport opening intothe rear socket and acavity opening into the airport and into the rear portion of the forward socket, a pair of annulii, one mounted against the: walls of and of less thickness than the depth of said cavity and the other positioned at the base of the rear socket and constituting a valve seat, said annulii having their edges flush with the ends of the wall of said port, a cup shaped container opening. at its forward end and ported at its rear end, said container secured within said rear socket and having its; forward end abutting said valve seat, a check normally abutting said seat to: close the port and. including a stem extending through the annulii. and airport into said forward socket, said check extending into said container, said male member being in the form of a block for insertion into said forward socket, said block being formed with a protubera ance for entering saidicavity to open. the check, said block being formed with an angle shaped air supply channel opening throughv the protuberance into said cavity and adapted to communicatewith the air supply line, and adjustable means carried by the other endof the casting of the female member for detachably clamping the block in said forward socket.

2. The invention asset forth in claim, L having said forward socket of square cross section, said rear socket of circular cross section, saidblockof square cross section, and said; angle shaped; air supply passage being formed of two branches, one of greater diameter than the other; the branch of smallest diameter opening through said protuberance and the branch of largest diameter adapted to have extended therein the air supply line.

3. The invention as set forth in claim 1 having the block of the male memberof square crossse'ction, the forward socket of the female member of square cross section and of materially greater Width and breadth than that of the block, and said block having one of its faces formed with a flared socket for receiving the inner end of said adjustable clamping means.

4. In a separable coupling of that type-including a female member and a male member for-detachable interengagement, said female member including a casting formed with spaced forward and rear sockets disposed at right angles to each other, said forward socket opening at the front of the casting for receiving the male member of the coupling and said rear socket opening at one end of the casting for receiving an air feed line, said casting including a cavity opening into the forward socket and an airport leading from the base of said rear socket to said cavity, said port opening into the cavity and rear socket, a. pair of resilient annulii, one mounted in and engaging the walls of and of less thickness than the depth of the cavity, the other positioned within the rear socket at the base of the latter, a cup shaped member engaging with the walls of the rear socket for securing that annulus which is positioned at the base of the rear socket stationary, the inner edges of said annulii registering with the walls of said airport, a check including a head arranged in said cup-shaped member and a stem passing through said annulii into said forward socket, said casting having its other end formed with a threaded opening, and adjustable means connected to the wall of the threaded opening and extending into the forward socket for detachably clamping the male member interengaged with the female member.

WILLIAM G. COLLINS. 

